快速支持
直接联系认证专家

Measurement Range: 30 to 130dB
Accuracy: ±1.5dB (94dB@1kHz)
Resolution: 0.1dB
Frequency Range: 31.5Hz to 8kHz
Weighting: A and C
Response Time: Fast (125ms)/Slow (1s)
Analog Output: AC and DC
Power: (4) AA batteries or USB
Dimensions: 9.6 x 2.8 x 1.8" (245 x 70 x 45mm)
Weight: 8.5oz. (240g)
Including
SoniChek PRO Professional Sound Level Meter (3550) (1)
Set of AC/DC Output Leads (1)
AA Batteries (4)
USB Cable (1)
Soft Carrying Case (1)
Instruction Manual (1)

